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FZUS54 KLCH 120510
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1209 AM CDT Sat Jul 12 2025

Coastal waters from the Lower Atchafalaya River LA to High
Island TX out 60 nautical miles including Sabine and
Calcasieu Lakes and Vermilion and Cote Blanche Bays

Seas are provided as a range of the average height of the
highest one third of the waves, along with the occasional
height of the average highest ten percent of the waves.

GMZ400-121800-
1209 AM CDT Sat Jul 12 2025

.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...

High pressure extending across the northern Gulf will maintain
light onshore winds and low seas through late next week. Daily
scattered showers and thunderstorms will continue over the coastal
waters through Monday with lower rain chances Tuesday through the
end of the week as upper level ridging builds across the northern
gulf.

$$

GMZ430-121800-
Sabine Lake-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 5 to 10 knots. Lake waters light chop. A
chance of showers and thunderstorms this morning, then showers
and thunderstorms likely this afternoon.
.TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots. Lake waters light chop.
Showers and thunderstorms likely.
.SUNDAY NIGHT...South winds 5 to 10 knots, diminishing to around
5 knots after midnight. Lake waters light chop. A slight chance
of showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Lake waters light chop.
.TUESDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...West winds around 5 knots, becoming south in the
afternoon. Lake waters light chop.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ432-121800-
Calcasieu Lake-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 5 to 10 knots. Lake waters light chop. A
chance of showers this morning. A chance of thunderstorms.
Showers likely this afternoon.
.TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A
slight chance of showers and thunderstorms.
.SUNDAY...South winds 5 to 10 knots. Lake waters light chop.
Showers and thunderstorms likely, mainly in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light
chop. A slight chance of showers and thunderstorms after
midnight.
.MONDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.TUESDAY...West winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light
chop.
.WEDNESDAY...West winds around 5 knots, becoming south in the
afternoon. Lake waters light chop. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters
light chop. A slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ435-121800-
Vermilion and West Cote Blanche Bays-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 5 to 10 knots. Bay waters light chop. A
slight chance of showers this morning. A slight chance of
thunderstorms late this morning, then a chance of showers and
thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers and thunderstorms in the evening.
.SUNDAY...South winds around 5 knots. Bay waters smooth. Showers
and thunderstorms likely.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.MONDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms after midnight.
.TUESDAY...Northwest winds around 5 knots, becoming southwest in
the afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop.
A slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northwest winds around 5 knots, becoming southwest
in the afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
light chop. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ436-121800-
Atchafalaya and East Cote Blanche Bays-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 5 to 10 knots. Bay waters light chop. A
chance of showers. A slight chance of thunderstorms this morning,
then a chance of thunderstorms this afternoon.
.TONIGHT...South winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms in the evening.
.SUNDAY...South winds around 5 knots. Bay waters smooth. Showers
and thunderstorms likely.
.SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.MONDAY NIGHT...West winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms after midnight.
.TUESDAY...West winds around 5 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...West winds around 5 knots. Bay waters smooth. A
slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northwest winds around 5 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...West winds around 5 knots. Bay waters smooth.
A slight chance of thunderstorms. A slight chance of showers in
the evening, then a chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ450-121800-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of thunderstorms.
.TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.TUESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. A slight chance of showers and
thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ452-121800-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers. A slight
chance of thunderstorms early this morning, then a chance of
thunderstorms late this morning and afternoon.
.TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.MONDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 5 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 6 seconds. A slight chance
of showers and thunderstorms after midnight.
.TUESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms, mainly in the morning.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. A chance of showers and thunderstorms, mainly in the
morning.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ455-121800-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds. A chance of showers. A slight
chance of thunderstorms this morning, then a chance of
thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds around 5 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: South 1 foot at
3 seconds. Showers and thunderstorms likely, mainly in the
morning.
.SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 2 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.MONDAY...Southwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 2 seconds and south 1 foot
at 6 seconds. A slight chance of showers and thunderstorms after
midnight.
.TUESDAY...West winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northwest winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ470-121800-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of thunderstorms. A
chance of showers this morning, then showers likely this
afternoon.
.TONIGHT...South winds around 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms after midnight.
.MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds.
.TUESDAY...South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms in the
morning, then a slight chance of showers in the afternoon.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. A slight chance of showers and
thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ472-121800-
Coastal waters from Intracoastal City to Cameron LA from 20 to
60 NM-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance
of showers and thunderstorms after midnight.
.TUESDAY...Southwest winds around 5 knots. Seas around 2 feet. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. A slight chance of showers and thunderstorms after
midnight.
.WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. A chance of showers and
thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ475-121800-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA from 20 to 60 NM-
1209 AM CDT Sat Jul 12 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A slight chance of showers and
thunderstorms this morning, then a chance of showers and
thunderstorms this afternoon.
.TONIGHT...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. Showers and thunderstorms
likely, mainly in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms after midnight.
.MONDAY...Southwest winds around 5 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southwest winds around 5 knots. Seas around
2 feet in the evening, then 1 foot or less. Wave Detail: South
2 feet at 6 seconds, becoming south 1 foot at 6 seconds. A slight
chance of showers and thunderstorms after midnight.
.TUESDAY...Northwest winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms, mainly in the morning.
.TUESDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.
A slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northwest winds around 5 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots. Seas 1 foot or
less. A slight chance of showers and thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$